#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main() {
    int h = 0, w = 0;
    double c = 0.0;
    scanf("%d %d", &w, &h);
    double high = h / 100.0;
    c = w / (high * high);
    printf("%.2lf\n", c);
    return 0;
}